Remington makes a cheap version of the WingMaster, called the Express. Now they have the 788. Browning makes the BPS and it has always been an excellent and under-rated pump. ....
If I had to make a choice at this time, I would go with the WingMaster but only because they are lighter to carry than the BPS. ....
As for the 37, I use to have an older one that I have kicked myself in the back-side for ever selling. .....
Be Safe !!!